diff --git a/xxx/stamp.rs
index 3631a91..87ebc60 100644
--- a/xxx/stamp.rs
+++ b/xxx/stamp.rs
@@ -1,4 +1,5 @@
 use std::fmt::Display;
+use std::sync::{Arc, Mutex};
 
 use async_lsp::lsp_types::Position;
 use ropey::{Rope, RopeSlice};
@@ -98,7 +99,7 @@ impl<'a> Stamp<'a> {
             info!(
                 eol = stamp.is_eol,
                 new_line = stamp.is_new_line,
-                signle_line = stamp.node_is_single_line,
+                single_line = stamp.node_is_single_line,
                 node = node.kind(),
                 should_close = stamp.should_close_with.map(|c| c.to_string()),
                 child = node.named_child_count(),
@@ -266,7 +267,7 @@ impl<'a> Stamp<'a> {
         CompletionTrend {
             pos: self.pos,
             result: CompletionType::Discard,
-            stamp: self,
+            stamp: Arc::new(Mutex::new(self)),
             reason,
             stop: None,
         }
@@ -276,7 +277,7 @@ impl<'a> Stamp<'a> {
         CompletionTrend {
             pos: self.pos,
             result: CompletionType::SingleLine,
-            stamp: self,
+            stamp: Arc::new(Mutex::new(self)),
             reason,
             stop: None,
         }
@@ -286,7 +287,7 @@ impl<'a> Stamp<'a> {
         CompletionTrend {
             pos: self.pos,
             result: CompletionType::MultiLine,
-            stamp: self,
+            stamp: Arc::new(Mutex::new(self)),
             reason,
             stop: None,
         }
@@ -669,6 +670,3 @@ func demo(i int) int {
         }
     }
 }
-
-